Crumble by Fleur Philips

Eighteen-year-old Sarah McKnight has a secret. She's in love with David Brooks. Sarah is white. David is black. But Sarah's not the only one keeping secrets in the close-knit community of Kalispell, Montana. Her father George, who owns a local gun shop and proudly drives a truck with a Confederate flag bumper sticker, hides his own complicated past. When he discovers Sarah's relationship, George decides to share his feelings with Alex Mackey-a lonely classmate of Sarah's whom George has taken under his wing. As Alex embraces the power of George's dark hatred, the hopes and dreams of young lives hang in the balance. In just a few short months, Sarah and David will graduate from high school and leave Kalispell for a new life together in Los Angeles. Maybe in California, they can stop hiding their love-and the other secret they share...something George McKnight-and Alex Mackey-will never accept.